Abstract
An optical resonator is often called fully tunable if its tunable range exceeds the spectral interval that contains the resonances at all the characteristic modes of this resonator. For high-Q-factor spheroidal and toroidal microresonators, this interval coincides with the azimuthal free spectral range (FSR). In this Letter, we demonstrate what we believe to be the first mechanically fully tunable spheroidal microresonator created of a silica microbubble having a order radius and order wall thickness. The tunable bandwidth of this resonator is more than two times greater than its azimuthal FSR.
© 2010 Optical Society of America
Full Article | PDF ArticleMore Like This
M. Sumetsky, Y. Dulashko, and R. S. Windeler
Opt. Lett. 35(7) 898-900 (2010)
Shen Liu, Zhongyuan Sun, Lin Zhang, Cailing Fu, Yu Liu, Changrui Liao, Jun He, Zhiyong Bai, Ying Wang, and Yiping Wang
Opt. Lett. 43(17) 4077-4080 (2018)
J. Yu, J. Zhang, R. Wang, A. Li, M. Zhang, S. Wang, P. Wang, J. M. Ward, and S. Nic Chormaic
Opt. Express 28(22) 32858-32868 (2020)